Fix a few bugs when using the fog deployer with a path specified

- Correctly compose the key for the file (path/to/file rather than pathto/file)
- Fix a bug where all files outside of the path get deleted when you deploy
- Fix a bug where fog throws a warning about "Unrecognized arguments: path"
Load Windows color support properly
Properly restore $std{out,err} to original value
Remove duplicate cygwin in RUBY_PLATFORM check
Merge pull request #351 from 36degrees/release-3.6.x

Fix a few bugs when using the fog deployer with a path specified
Hide deprecated watch and autocompile commands
Merge pull request #356 from nanoc/bug/windows-colors

Load Windows color support properly
Do not use missing File.dir?
Merge pull request #357 from nanoc/hide-watch-and-autocompile-commands

Hide deprecated watch and autocompile commands
Update release notes for 3.6.7
Merge branch 'bug/file-dir-crash-in-watcher' into release-3.6.x
Add watcher crash fix to release notes
Add missing PR id to release notes